A duplex fuse

Abstract

The utility model relates to the field of fuse, relate to a duplex fuse, the utility model discloses: fuse base, fuse core one, fuse core two, vertical board and insulating positioning support plate are symmetrically equipped with two groups of wiring terminal no.

Description

Technical Field

[0001] This utility model relates to the field of fuses, and specifically to a double-gang fuse. Background Technology

[0002] In existing fuse technology, the fuse element is typically mounted on the fuse base, and the contacts of the fuse element are inserted into the positioning posts of the terminals on the fuse base. The fuse element is secured by static friction between the two. However, this method of fixing based on static friction has significant shortcomings. In actual use, when the fuse is subjected to external vibrations, impacts, or electromagnetic forces caused by current fluctuations in the circuit, static friction alone is insufficient to ensure the stable fixation of the fuse element. The fuse element may loosen, shift, or even fall off. This not only affects the normal circuit protection function of the fuse but may also cause poor circuit contact. Therefore, there is an urgent need for a fuse structure that can improve the installation stability of the fuse element. Utility Model Content

[0003] This invention provides a double-gang fuse to address the problems of existing technologies.

[0004] The objective of this utility model can be achieved through the following technical solution: A double-gang fuse includes: a fuse base, a first fuse element, a second fuse element, a vertical plate, and an insulating positioning plate. Two sets of terminals 1 are symmetrically arranged on the left side of the fuse base, with a positioning post 1 connected to the front end of each terminal 1. Two sets of terminals 2 are symmetrically arranged on the right side of the fuse base, with a positioning post 2 connected to the front end of each terminal 2. The contacts of the first fuse element are disposed between and electrically connected to the first positioning post, and the contacts of the second fuse element are disposed between and electrically connected to the second positioning post. The vertical plate is snapped into the middle of the fuse base, and the insulating positioning plate is snapped into the front side of the vertical plate. A baffle 1 on the upper side of the insulating positioning plate is located on the upper end face of the first fuse tube of the first fuse element and the second fuse tube of the second fuse element. A baffle 2 on the lower side of the insulating positioning plate is located on the lower end face of the first fuse tube of the first fuse element and the second fuse tube of the second fuse element.

[0005] In a further improvement, a slot 1 is provided on the upper side of the middle of the vertical plate, a slot 2 is provided on the lower side of the middle of the vertical plate, a baffle 1 is inserted into slot 1, a baffle 2 is inserted into slot 2, an insert plate is provided between slot 1 and slot 2, and a slot 3 with a matching insert plate is provided on the inner side of the middle of the insulating positioning tray.

[0006] In a further improvement, the fuse base is provided with four sets of T-shaped opening grooves that are symmetrically arranged vertically and horizontally, and the first or second terminal block is snapped into the T-shaped opening groove.

[0007] In a further improvement, the upper and lower surfaces of the fuse base are provided with sliding grooves, the upper and lower parts of the inner side of the vertical plate are slidably disposed in the sliding grooves, and the upper outer side and lower outer side of the inner side of the vertical plate are provided with hooks.

[0008] Compared with the prior art, the advantages of this double-gang fuse are as follows:

[0009] By using upper and lower baffles on the insulating positioning plate, the previous method of fixing the fuse core solely through static friction between the fuse contact and the positioning post is changed. The fuse core is now limited and fixed from both above and below, significantly improving its stability when mounted on the fuse base. Even under external vibration, impact, or electromagnetic forces in the circuit, the fuse core is less prone to loosening or displacement, ensuring the fuse's normal circuit protection function, reducing circuit faults caused by fuse instability, and improving the safety and reliability of circuit operation. Attached Figure Description

[0010] Figure 1 This is a structural schematic diagram of the present invention.

[0011] Figure 2 This is a structural schematic diagram from another perspective of the present invention.

[0012] Figure 3 This is a schematic diagram of the fuse base in this utility model.

[0013] Figure 4 This is a schematic diagram of the vertical plate in this utility model.

[0014] Figure 5 This is a schematic diagram of the structure of the insulating positioning tray in this utility model.

[0015] In the diagram, 1-fuse base, 11-terminal 1, 111-positioning post 1, 12-terminal 2, 121-positioning post 2, 13-T-shaped opening groove, 14-slide groove, 2-fuse core 1, 21-fuse tube 1, 3-fuse core 2, 31-fuse tube 2, 4-vertical plate, 41-slot 1, 42-slot 2, 43-insert plate, 44-hook, 5-insulating positioning support plate, 51-baffle 1, 52-baffle 2, 53-slot 3. Detailed Implementation

[0016] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; unless otherwise expressly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, for example, they can refer to fixed connections or detachable connections, etc. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0017] The following is a description of the embodiments and appendices. Figures 1-5 The technical solution of this utility model will be further described below.

[0018] Example 1

[0019] A double-fuse circuit breaker includes: a fuse base 1, a first fuse element 2, a second fuse element 3, a vertical plate 4, and an insulating positioning support plate 5. The fuse base 1 has two sets of terminals 11 symmetrically arranged vertically on its left side, with positioning posts 111 connected to the front ends of each terminal 11. The fuse base 1 also has two sets of terminals 12 symmetrically arranged vertically on its right side, with positioning posts 121 connected to the front ends of each terminal 12. The contacts of the first fuse element 2 are positioned between the positioning posts 111 and are electrically connected to the positioning posts 121. Positioning post 111, the contact of the fuse element 3 is disposed between positioning posts 121 and electrically connected to positioning posts 121, the vertical plate 4 is snapped into the middle of the fuse base 1, the insulating positioning plate 5 is snapped into the front side of the vertical plate 4, the baffle 51 on the upper side of the insulating positioning plate 5 is located on the upper end face of the fuse tube 21 of fuse element 2 and the fuse tube 31 of fuse element 3, and the baffle 52 on the lower side of the insulating positioning plate 5 is located on the lower end face of the fuse tube 21 of fuse element 2 and the fuse tube 31 of fuse element 3.

[0020] like Figures 1-5As shown, when the fuse element is installed, after the contact is connected to the positioning post, baffle 51 and baffle 52 constrain the fuse tube from the top and bottom, restricting the movement of the fuse element in the vertical direction, so that the fuse element can be stably fixed on the fuse base after installation. The upper and lower baffles of the insulating positioning bracket 5 change the previous method of fixing the fuse element solely by the static friction between the fuse element contact and the positioning post. By limiting and fixing the fuse element from the top and bottom, the stability of the fuse element installed on the fuse base is greatly improved. Even when affected by external vibration, impact, or electromagnetic forces in the circuit, the fuse element is less likely to loosen or shift, ensuring the normal circuit protection function of the fuse, reducing circuit faults caused by fuse element instability, and improving the safety and reliability of circuit operation.

[0021] As a further preferred embodiment, the upper side of the middle of the vertical plate 4 is provided with a slot 41, and the lower side of the middle of the vertical plate 4 is provided with a slot 42. A baffle 51 is inserted into slot 41, and a baffle 52 is inserted into slot 42. A plug plate 43 is provided between slot 41 and slot 42. The inner side of the middle of the insulating positioning tray 5 is provided with a slot 53 that matches the plug plate 43. This slot and plug plate cooperation structure enhances the connection stability between the insulating positioning tray 5 and the vertical plate 4, preventing the insulating positioning tray 5 from shaking or shifting during use. It ensures that baffles 51 and 52 on the insulating positioning tray 5 can always reliably limit and fix the fuse core, further improving the stability of the fuse core installation. It also makes the installation and disassembly of the insulating positioning tray 5 more convenient and quick, facilitating the maintenance and repair of the fuse.

[0022] As a further preferred embodiment, the fuse base 1 is provided with four sets of T-shaped opening grooves 13 arranged symmetrically in the vertical and horizontal directions, and the terminal 11 or terminal 212 is snapped into the T-shaped opening grooves 13. The structure of the T-shaped groove restricts the movement of the terminal in the horizontal and vertical directions, and the terminal is firmly fixed to the fuse base by mechanical snapping.

[0023] As a further preferred embodiment, the fuse base 1 has a sliding groove 14 on its upper and lower ends. The upper and lower inner sides of the vertical plate 4 are slidably disposed within the sliding groove 14. Hooks 44 are provided on the outer sides of both the upper and lower inner sides of the vertical plate 4. The sliding groove 14 in the middle of the fuse base 1 cooperates with the structure of the upper and lower inner sides of the vertical plate 4, allowing the vertical plate 4 to slide within the sliding groove 14. The hooks 44 on the outer sides of the upper and lower inner sides of the vertical plate 4 engage with corresponding parts of the fuse base 1 after the vertical plate 4 is installed, restricting the movement of the vertical plate 4 within the sliding groove and firmly fixing the vertical plate 4 to the middle of the fuse base.

[0024] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A double-gang fuse, characterized in that, include: The fuse base comprises a fuse element 1, a fuse element 2, a vertical plate, and an insulating positioning bracket. The fuse base has two sets of terminals 1 symmetrically arranged on its left side, with a positioning post 1 connected to the front end of each terminal 1. The fuse base also has two sets of terminals 2 symmetrically arranged on its right side, with a positioning post 2 connected to the front end of each terminal 2. The contacts of fuse element 1 are positioned between and electrically connected to positioning posts 1, and the contacts of fuse element 2 are positioned between and electrically connected to positioning posts 2. The vertical plate is snapped into the middle of the fuse base, and the insulating positioning bracket is snapped into the front side of the vertical plate. A baffle 1 on the upper side of the insulating positioning bracket is located on the upper end face of the fuse tube 1 of fuse element 1 and the fuse tube 2 of fuse element 2. A baffle 2 on the lower side of the insulating positioning bracket is located on the lower end face of the fuse tube 1 of fuse element 1 and the fuse tube 2 of fuse element 2.

2. A double-gang fuse according to claim 1, characterized in that, The upper side of the middle of the vertical plate is provided with slot one, and the lower side of the middle of the vertical plate is provided with slot two. Baffle one is inserted into slot one, baffle two is inserted into slot two, and an insert plate is provided between slot one and slot two. The inner side of the middle of the insulating positioning tray is provided with slot three for matching insert plate.

3. A double-gang fuse according to claim 1, characterized in that, The fuse base has four sets of T-shaped opening grooves arranged symmetrically in the upper and lower and left and right directions. The first or second terminal is snapped into the T-shaped opening groove.

4. A double-gang fuse according to claim 1, characterized in that, The upper and lower surfaces of the fuse base are provided with sliding grooves, and the upper and lower inner sides of the vertical plate are slidably disposed in the sliding grooves. Hooks are provided on the upper outer side and lower outer side of the inner side of the vertical plate.

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